Plant functional trait diversity and structural diversity co-underpin ecosystem multifunctionality in subtropical forests

IF 3.8 1区农林科学 Q1 FORESTRY

Forest Ecosystems Pub Date : 2023-01-01 DOI:10.1016/j.fecs.2023.100093

Shuai Ouyang , Mengmeng Gou , Pifeng Lei , Yue Liu , Liang Chen , Xiangwen Deng , Zhonghui Zhao , Yelin Zeng , Yanting Hu , Changhui Peng , Wenhua Xiang

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引用次数: 6

Abstract

Tree species diversity is assumed to be an important component in managing forest ecosystems because of effects on multiple functions or ecosystem multifunctionality. However, the importance of tree diversity in determining multifunctionality in structurally complex subtropical forests relative to other regulators (e.g., soil microbial diversity, stand structure, and environmental conditions) remains uncertain. In this study, effects of aboveground (species richness and functional and structural diversity) and belowground (bacterial and fungal diversity) biodiversity, functional composition (community-weighted means of species traits), stand structure (diameter at breast height and stand density), and soil factors (pH and bulk density) on multifunctionality (including biomass production, carbon stock, and nutrient cycling) were examined along a tree diversity gradient in subtropical forests. The community-weighted mean of tree maximum height was the best predictor of ecosystem multifunctionality. Functional diversity explained a higher proportion of the variation in multifunctionality than that of species richness and fungal diversity. Stand structure -played an important role in modulating the effects of tree diversity on multifunctionality. The work highlights that species composition and maximizing forest structural complexity are effective strategies to increase forest multifunctionality while also conserving biodiversity in the management of multifunctional forests under global environmental changes.

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植物功能性状多样性和结构多样性共同支撑亚热带森林生态系统的多功能性

由于对多种功能或生态系统多功能性的影响，树种多样性被认为是管理森林生态系统的重要组成部分。然而，相对于其他调节因子（如土壤微生物多样性、林分结构和环境条件），树木多样性在决定结构复杂的亚热带森林的多功能性方面的重要性仍然不确定。在本研究中，地上（物种丰富度、功能和结构多样性）和地下（细菌和真菌多样性）生物多样性、功能组成（物种特征的群落加权平均值）、林分结构（胸径和林分密度），以及土壤因素（pH和容重）对亚热带森林多功能性（包括生物量生产、碳储量和养分循环）的影响。树木最大高度的群落加权平均值是生态系统多功能性的最佳预测因子。功能多样性解释了多功能性变异的比例高于物种丰富度和真菌多样性。林分结构在调节树木多样性对多功能性的影响方面发挥了重要作用。这项工作强调，物种组成和最大限度地提高森林结构复杂性是在全球环境变化的情况下，在管理多功能森林的同时保护生物多样性的有效策略。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Forest Ecosystems Environmental Science-Nature and Landscape Conservation

CiteScore

7.10

自引率

4.90%

发文量

1115

审稿时长

22 days

期刊介绍： Forest Ecosystems is an open access, peer-reviewed journal publishing scientific communications from any discipline that can provide interesting contributions about the structure and dynamics of "natural" and "domesticated" forest ecosystems, and their services to people. The journal welcomes innovative science as well as application oriented work that will enhance understanding of woody plant communities. Very specific studies are welcome if they are part of a thematic series that provides some holistic perspective that is of general interest.